654
FNCA52 TJSJ 161930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST THU APR 16 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-170800-
SOUTHEAST COASTAL PLAINS-
330 PM AST THU APR 16 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 60 40 30
TEMP (24H TREND) 70 (-2) 87 (+2) 70 87
RH % (24H TREND) 89 (+2) 51 (-8) 91 52
WIND 20FT/EARLY(MPH) E 12 E 16 E 11 E 14
WIND 20FT/LATE(MPH) E 10 E 16 NE 10 E 17
MIXING HGT(FT-AGL/MSL) 4840 4860
TRANSPORT WND (MPH) E 15 E 13
VENT RATE (KT-FT) 62920 53460
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-170800-
SOUTHERN HILLS-
330 PM AST THU APR 16 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 40 70 30 50
TEMP (24H TREND) 66 (-3) 83 (+2) 66 83
RH % (24H TREND) 98 (+6) 66 (-6) 98 67
WIND 20FT/EARLY(MPH) E 10 E 12 E 10 E 11
WIND 20FT/LATE(MPH) E 10 E 12 E 10 E 11
MIXING HGT(FT-AGL/MSL) 5270 5520
TRANSPORT WND (MPH) E 14 E 12
VENT RATE (KT-FT) 63240 55200
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-170800-
NORTH COASTAL PLAINS-
330 PM AST THU APR 16 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 80 40 30
TEMP (24H TREND) 69 (-2) 86 (0) 69 86
RH % (24H TREND) 99 (+5) 63 (-4) 98 64
WIND 20FT/EARLY(MPH) E 11 E 12 E 11 E 12
WIND 20FT/LATE(MPH) E 11 E 14 E 11 E 16
MIXING HGT(FT-AGL/MSL) 4440 4890
TRANSPORT WND (MPH) E 14 E 14
VENT RATE (KT-FT) 53280 58680
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-170800-
NORTHERN HILLS-
330 PM AST THU APR 16 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 50 80 30 60
TEMP (24H TREND) 67 (-1) 85 (+1) 67 85
RH % (24H TREND) 98 (+4) 65 (-3) 98 67
WIND 20FT/EARLY(MPH) E 9 E 11 E 9 E 11
WIND 20FT/LATE(MPH) E 9 E 12 E 9 E 14
MIXING HGT(FT-AGL/MSL) 5160 5510
TRANSPORT WND (MPH) E 12 E 10
VENT RATE (KT-FT) 51600 49590
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-170800-
WEST COAST-
330 PM AST THU APR 16 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 30 90 30 70
TEMP (24H TREND) 70 (0) 88 (+1) 69 87
RH % (24H TREND) 94 (+2) 61 (-3) 96 63
WIND 20FT/EARLY(MPH) E 11 E 11 E 10 E 11
WIND 20FT/LATE(MPH) E 12 E 13 E 9 E 11
MIXING HGT(FT-AGL/MSL) 4440 4750
TRANSPORT WND (MPH) E 9 E 7
VENT RATE (KT-FT) 35520 28500
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-170800-
EASTERN INTERIOR-
330 PM AST THU APR 16 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 80 60 40
TEMP (24H TREND) 68 (-2) 84 (+2) 68 83
RH % (24H TREND) 99 (+4) 67 (-5) 99 66
WIND 20FT/EARLY(MPH) E 13 E 13 E 12 E 12
WIND 20FT/LATE(MPH) E 13 E 12 E 11 E 12
MIXING HGT(FT-AGL/MSL) 4320 5120
TRANSPORT WND (MPH) E 14 E 13
VENT RATE (KT-FT) 51840 56320
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-170800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST THU APR 16 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 70 90 70 50
TEMP (24H TREND) 66 (-2) 79 (+1) 66 79
RH % (24H TREND) 100 (+1) 73 (-4) 100 72
WIND 20FT/EARLY(MPH) E 11 E 11 E 9 E 11
WIND 20FT/LATE(MPH) E 10 E 10 E 8 E 10
MIXING HGT(FT-AGL/MSL) 2300 4050
TRANSPORT WND (MPH) E 15 E 14
VENT RATE (KT-FT) 29900 48600
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-170800-
CENTRAL MOUNTAIN RANGE-
330 PM AST THU APR 16 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 40 90 30 80
TEMP (24H TREND) 64 (-3) 83 (+3) 64 82
RH % (24H TREND) 98 (+5) 67 (-4) 99 69
WIND 20FT/EARLY(MPH) E 6 E 8 E 6 E 8
WIND 20FT/LATE(MPH) E 6 E 9 E 6 E 9
MIXING HGT(FT-AGL/MSL) 5800 6170
TRANSPORT WND (MPH) E 9 E 7
VENT RATE (KT-FT) 46400 37020
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-170800-
CAYEY MOUNTAIN RANGE-
330 PM AST THU APR 16 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 70 50 40
TEMP (24H TREND) 67 (-1) 79 (+1) 67 78
RH % (24H TREND) 99 (+1) 73 (-5) 100 74
WIND 20FT/EARLY(MPH) E 9 E 11 E 8 E 10
WIND 20FT/LATE(MPH) E 9 E 10 E 8 E 10
MIXING HGT(FT-AGL/MSL) 3430 4610
TRANSPORT WND (MPH) E 16 E 14
VENT RATE (KT-FT) 48020 55320
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-170800-
VIEQUES-
330 PM AST THU APR 16 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 70 70 70 60
TEMP (24H TREND) 71 (-3) 85 (0) 72 85
RH % (24H TREND) 95 (+4) 62 (-4) 92 60
WIND 20FT/EARLY(MPH) E 17 E 17 E 16 E 14
WIND 20FT/LATE(MPH) E 16 E 16 E 14 E 14
MIXING HGT(FT-AGL/MSL) 3320 3580
TRANSPORT WND (MPH) E 18 E 18
VENT RATE (KT-FT) 53120 57280
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-170800-
CULEBRA-
330 PM AST THU APR 16 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 70 70 70 60
TEMP (24H TREND) 73 (-3) 87 (+1) 74 87
RH % (24H TREND) 94 (+4) 60 (-8) 92 58
WIND 20FT/EARLY(MPH) E 17 E 17 E 16 E 14
WIND 20FT/LATE(MPH) E 16 E 16 E 14 E 14
MIXING HGT(FT-AGL/MSL) 3350 3580
TRANSPORT WND (MPH) E 20 E 18
VENT RATE (KT-FT) 56950 57280
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-170800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST THU APR 16 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 50 30 50
TEMP (24H TREND) 70 (-2) 88 (+1) 70 88
RH % (24H TREND) 92 (+3) 50 (-7) 92 50
WIND 20FT/EARLY(MPH) E 16 E 16 E 14 E 16
WIND 20FT/LATE(MPH) E 16 SE 19 E 12 E 17
MIXING HGT(FT-AGL/MSL) 4940 5180
TRANSPORT WND (MPH) E 16 E 13
VENT RATE (KT-FT) 69160 56980
DISPERSION 5 5
DSI 5 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-170800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST THU APR 16 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 60 60 50
TEMP (24H TREND) 73 (-3) 85 (+1) 73 85
RH % (24H TREND) 93 (+5) 61 (-6) 93 58
WIND 20FT/EARLY(MPH) E 18 E 17 E 16 E 16
WIND 20FT/LATE(MPH) E 17 E 17 E 16 E 16
MIXING HGT(FT-AGL/MSL) 3420 3570
TRANSPORT WND (MPH) E 20 E 18
VENT RATE (KT-FT) 58140 57120
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-170800-
ST CROIX-
330 PM AST THU APR 16 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 60 60 60 60
TEMP (24H TREND) 72 (-3) 86 (+1) 72 86
RH % (24H TREND) 95 (+6) 62 (-7) 94 61
WIND 20FT/EARLY(MPH) E 16 E 17 E 14 E 16
WIND 20FT/LATE(MPH) E 14 E 16 E 14 E 14
MIXING HGT(FT-AGL/MSL) 4080 4480
TRANSPORT WND (MPH) E 20 E 18
VENT RATE (KT-FT) 69360 71680
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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